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Saturday, May 16, 2020 | History

3 edition of Comparison study of gear dynamic computer programs at NASA Lewis Research Center found in the catalog.

Comparison study of gear dynamic computer programs at NASA Lewis Research Center

Comparison study of gear dynamic computer programs at NASA Lewis Research Center

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Published by National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Division, For sale by the National Technical Information Service] in [Washington, D.C.], [Springfield, Va .
Written in English

    Subjects:
  • Computer software.

  • Edition Notes

    StatementJames J. Zakrajesek.
    SeriesNASA technical paper -- 2901., AVSCOM technical report -- 88-C-010., AVSCOM technical report -- 88-C-10.
    ContributionsUnited States. National Aeronautics and Space Administration. Scientific and Technical Information Division.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL17658597M

    Pleiades (/ ˈ p l aɪ ə d iː z, ˈ p l iː ə-/) is a petascale supercomputer housed at the NASA Advanced Supercomputing (NAS) facility at NASA's Ames Research Center located at Moffett Field near Mountain View, California. It is maintained by NASA and partners Hewlett Packard Enterprise (formerly Silicon Graphics International) and ing system: SUSE Linux Enterprise Server. On March 1, , the center was officially renamed the NASA John H. Glenn Research Center at Lewis Field, in honor of John Glenn, who was a fighter pilot, astronaut (the first American to orbit the Earth) and a politician. As early as , researchers at the LFPL were studying the combustion processes in liquid rocket engines. FacilitiesAgency executive: Janet L. Kavandi, director.

      Athavale M. M., and Przekwas, A. J., SCISEAL Manual, , “SCISEAL: A Computer Program for Study of Fluid Dynamic Forces in Seals,” Developed under contract by NASA Lewis Research Center (NAS).Cited by: Using NASA Langley's FUN3D (Fully-Unstructured Navier-Stokes) computational fluid dynamics (CFD) code, Khorrami with colleagues Veer Vatsa and David Lockard are simulating the G landing gear on core Pleiades supercomputer at the NASA Advanced Supercomputing (NAS) Divison of NASA Ames Research Center in California.

      The Sciences and Exploration Directorate is the largest Earth and space science research organization in the world. Its scientists advance understanding of the Earth and its life-sustaining environment, the Sun, the solar system, and the wider universe beyond. The Directorate is part of Goddard Space Flight Center (GSFC) in Greenbelt, Maryland. NASA - Search Results Articles About NASA. Articles are sorted by RELEVANCE. Sort by Date.. 1 NASA Gets Down and Dirty for SARJ Solution (September/October ). For more than 10 months, NASA ground engineers and International Space Station (ISS) astronauts have been struggling with a perplexing malfunction of one of the station’s two solar array rotary joints (SARJ).


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Comparison study of gear dynamic computer programs at NASA Lewis Research Center Download PDF EPUB FB2

A comparison study was performed on four gear dynamic analysis computer programs developed under NASA/Army sponsorship. These programs are GRDYNMULT (a multimesh program applicable to a number of epicyclic systems), TELSGE (a single mesh program), PGT (a multimesh program applicable to a planetary system with three.

Comparison study of gear dynamic computer programs at NASA Lewis Research Center. By James J. Zakrajsek. Abstract.

A comparison study was performed on four gear dynamic analysis computer programs developed under NASA/Army sponsorship. These programs are GRDYNMULT (a multimesh program applicable to a number of epicyclic systems), TELSGE (a Author: James J. Zakrajsek. Get this from a library.

Comparison study of gear dynamic computer programs at NASA Lewis Research Center. [James J Zakrajsek; United States. National Aeronautics and Space Administration. Scientific and Technical Information Division.].

Current research efforts at NASA Lewis include efforts to validate program D_NST by comparing the results with experimental data from the gear noise test rig. D_NST is also being extended to provide dynamic analysis of high contact ratio spur gears. Gear train dynamics research Vibration in rotorcraft transmissions is a.

This report presents a computer-based method of analysis of spur gear system dynamics. The report is based upon research conducted by the authors at the University of Cincinnati with the support of the NASA Lewis Research Center from to under Grant NSG The report represents a portion of the first author's doctoral dissertation.

and experimental study of gear thermal conditions, the analytical and experimental study of split torque sys-tems, the evaluation of several new advanced gear steels and transmission lubricants and the evaluation of various aircraft transmissions. The area of research needs for gearing and transmissions is also discussed.

NASA Lewis Research CenterFile Size: 1MB. 2 NASA LEWIS GEAR NOISE, VIBRATION, AND DIAGNOSTICS RESEARCH The gear dynamics research activities at NASA Lewis focus on developing advanced technologies and analytical tools to help achieve the goals of reduced weight, vibration, and noise in future rotorcraft transmissions.

This paper presents a computer simulation showing how the gear contact ratio affects the dynamic load on a spur gear transmission. The contact ratio can be affected by the tooth addendum, the pressure angle, the tooth size (diametral pitch), and the center by: HELD AT NASA LEWIS RESEARCH CENTER October 21 Introduction On October 21 The Futures Group of Glastonbury, CT, ran a "futuring workshop" on the premises of NASA's Lewis Research Center under sponsorship of the Office of Technology.

Lewis Research Center, located in Cleveland, Ohio, is NASA's Center of Excellence in turbomachinery. This center has a primary mission to work in aeropropulsion in support of NASA's Aeronautics and Space Transportation Technology Enterprise.

Organized in by the National Advisory Committee for. Fundamental microgravity science experiments are tasked to the Lewis Microgravity Division.

Academic, industry and government researchers have access to the Lewis ground-based research facilities. The program also supports the conduct of microgravity science experiments on the Shuttle and in the future aboard the International Space Station.

A companion tool to Glenn Research Center's ACD software (LEW), ACOD is streamline analysis code for predicting the off-design performance of multistage axial-flow compressors. Flow, blading, and loss are modeled similarly to ACD. ½ ¾ NASA Lewis Research Center ¿ ¾ Computer Sciences Corporation, NASA Ames Research Center.

Sohoni, V.N., and Chace, M.A., “Pseudo-Prototyping of Aerospace Mechanical Dynamic Systems with a Generalized Computer Program,” Proceedings of the 20 th Aerospace Mechanisms Symposium, NASA Lewis Research Center, Cleveland, Ohio, May 7–9, Google ScholarCited by: Cleveland, OH -- NASA's Acting Deputy Administrator General John R.

Dailey and Center Director Donald J. Campbell were present on to honor more than 50 employees who made outstanding contributions to advancing the goals of NASA and the Lewis Research Center. NASA Langley Research Center Contributing to the Next Years of Flight. Langley Research Center in Hampton, Virginia, is a vital component of NASA.

In collaboration with other NASA Centers, Langley strives to understand and protect the Earth, explore the universe and search for life, and inspire the next generation of explorers.

ICHIMARU and F. HIRANO Journal of Engineering for Industry, Transactions of The American Society of Mechanical Engine Dynamic behavior of heavy-loaded spur gears. WANG and H. CHENG NASA Lewis Research Center Advanced Power Transmission and Technology, January, Cited by: NASA understands that information technology is critical in enabling nearly all current and future missions on Earth and beyond our planet, reducing costs and enhancing mission capability across all of NASA's enterprises.

NASA Ames Research Center has become a leader in the field of computer science and information technology because of its. Computing and Spaceflight: An Introduction [2] When the National Aeronautics and Space Administration came into existence inthe stereotypical computer was the "UNIVAC," a collection of spinning tape drives, noisy printers, and featureless boxes, filling a house-sized ive to purchase and operate, the giant computer needed a small army of technicians in constant.

The Lewis Research Center's 6- by 9- by Foot Icing Research Tunnel, built inis the world's largest refrigerated tunnel for year-round use to examine protection systems against hazardous ice formations on wings, air inlets, rotors and V/STOL aircraft. The largest wind tunnel in the world is at NASA's Ames Research Center.

New high-resolution climate simulations reproduce atmospheric features not previously seen in NASA computer models. Moving from kilometer resolution (top) to kilometer resolution (center) yields cloud clusters like those seen in observations from NOAA’s latest GOES satellite (bottom).NASA Lewis Research Center Open House Grades Discovery Future Engineers and Scientists in Training Human Exploration and Development of Space Microgravity Activity This activity demonstrates how surface tension changes can cause fluids to flow.

A drop of food coloring is put near the closed end of a water-filled maze and then a surfactant.The NASA Lewis Research Center's Learning Technologies Project.

diverseaudience. Acknowledging the potential of distance learning as an aidto meeting NASA's goals, many projects at NASA Lewis Research Centerin Cleveland, Ohio, have become involved in distance learning in avariety of ways. The Program's goal is to maintain the United.